West Bancorporation Inc., the West Des Moines-based parent company of West Bank, reported third-quarter net income of $4.36 million, a 16.3 percent increase from the third quarter of 2012. Net interest income for the third quarter of 2013 improved 13.3 percent over the same period last year, primarily as a result of loan growth, the company said in a release. Average loans outstanding for the third quarter of 2013 increased by $118 million, or 13.9 percent, when compared with the third quarter of 2012. Because of overall improvement in credit quality, the provision for loan losses for the third quarter was a negative $1 million, which represented an increase in income rather than an expense. West Bancorporation's board also declared a quarterly dividend of 11 cents per share.